[llvm-branch-commits] [clang] [Clang] [C++26] Expansion Statements (Part 5: Iterating Expansion Statements) (PR #169684)

[via llvm-branch-commits]

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@@ -242,5 +545,187 @@ Sema::ComputeExpansionSize(CXXExpansionStmtPattern *Expansion) {
         ->getRangeExpr()
         ->getNumInits();
 
+  // CWG 3131: N is the result of evaluating the expression
+  //
+  // [&] consteval {
+  //    std::ptrdiff_t result = 0;
+  //    auto b = begin-expr;
+  //    auto e = end-expr;
+  //    for (; b != e; ++b) ++result;
+  //    return result;
+  // }()
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Sirraide wrote:

Unfortunately not: consteval reuse the lambda parsing code... but we have no parser here

https://github.com/llvm/llvm-project/pull/169684